services:
  collector:
    image: otel/opentelemetry-collector-contrib:latest
    ports:
      - "4317:4317"  # OTLP gRPC
      - "55681:55681"  # OTLP HTTP
      - "8888:8888"  # Prometheus metrics endpoint
    volumes:
      - ./config.yaml:/etc/otel/config.yaml
    command: ["--config", "/etc/otel/config.yaml"]